Slammen
I accept that you have a right to govern what goes into your body but you don’t have the right to endanger many people in your community. We have thousands of laws that are in place that restrict personal freedoms but protect our broader society.
Re your (unfounded) concern about long term impacts, this might have some credence if you avoided all other risks, i.e. you stay true to your beliefs and you never drink alcohol, remove sugar from your diet, don’t smoke, eat meat ..... in fact don’t do anything that is much more likely (and has been proven) to be a risk to your long term health.
Only then can you say you are true to your beliefs and you can go ahead with your dull, boring and extremely selfish life (while sadly being a health risk to everyone around you)
